package com.nuist.filter;


import jakarta.servlet.*;
import jakarta.servlet.annotation.WebFilter;

import java.io.IOException;

/**
 * 字符编码过滤器
 * 过滤所有请求  /*
 */
@WebFilter("/*")
public class CharacterEncoding implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("初始化过滤器");
    }


    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
        System.out.println("销毁过滤器");
    }

}
